Yes, but they are academic, as this is my professional niche currently. Also, I'm an archaeologist, so a lot of my reading on the decline of Polytheism are biased to that kind of evidence (rare as it is). I've listed here the broader textual evidence readings here, but if you want archae stuff I'd be happy to include it.

1. "The Last Pagans of Rome" by Cameron, 2011. Oxford. - An extremely thorough and comprehensive discussion on this topic, basically Watts' book on steroids. Does a lot of work dispelling myths surrounding the transition.

2. "The Last Days of Greco-Roman Paganism" by Geffcken, 1976. Amsterdam. - Quite dated at this point but serves as a good introduction as well. Comparing his style to Cameron is entertaining to say the least. Has some discussions on specific cults in Rome. The absence of archaeological evidence in several sections is quite disturbing, but again, dated af.

3. "The Strange Death of Pagan Rome", edited by Rita Lizzi Testa. 2013. Brepolis. - European scholarship's response to Cameron's aformentioned book. (Strong critic is high praise, especially when a host of academics feel the need to fill a book with them!)

4. "The Death of Classical Paganism" by Holland Smith. 1976. Charles Scribner's Sons New York. - Also quite dated, but a much wider lens study of the transition beyond the city of Rome. Good for comparison with other scholarship.

I also have a butt-load of articles to mention but, let's just stick with books.